@dcl/ecs
Version:
Decentraland ECS
75 lines (74 loc) • 3.35 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createAssetLoadLoadingStateSystem = void 0;
const components = __importStar(require("../components"));
const entity_1 = require("../engine/entity");
/**
* @internal
*/
function createAssetLoadLoadingStateSystem(engine) {
const assetLoadLoadingStateComponent = components.AssetLoadLoadingState(engine);
const entitiesCallbackAssetLoadLoadingStateMap = new Map();
function registerAssetLoadLoadingStateEntity(entity, callback) {
entitiesCallbackAssetLoadLoadingStateMap.set(entity, { callback: callback, lastLoadingStateLength: 0 });
}
function removeAssetLoadLoadingStateEntity(entity) {
entitiesCallbackAssetLoadLoadingStateMap.delete(entity);
}
// @internal
engine.addSystem(function EventSystem() {
const garbageEntries = [];
for (const [entity, data] of entitiesCallbackAssetLoadLoadingStateMap) {
if (engine.getEntityState(entity) === entity_1.EntityState.Removed) {
garbageEntries.push(entity);
continue;
}
const loadingState = assetLoadLoadingStateComponent.get(entity);
if (loadingState.size === 0 || loadingState.size === data.lastLoadingStateLength)
continue;
// Get last added values (can be multiple per tick, just not for the same asset)
const lastValues = Array.from(loadingState.values()).slice(data.lastLoadingStateLength);
lastValues.forEach((value) => {
data.callback(value);
});
entitiesCallbackAssetLoadLoadingStateMap.set(entity, {
callback: data.callback,
lastLoadingStateLength: loadingState.size
});
}
// Clean up garbage entries
garbageEntries.forEach((garbageEntity) => entitiesCallbackAssetLoadLoadingStateMap.delete(garbageEntity));
});
return {
removeAssetLoadLoadingStateEntity(entity) {
removeAssetLoadLoadingStateEntity(entity);
},
registerAssetLoadLoadingStateEntity(entity, callback) {
registerAssetLoadLoadingStateEntity(entity, callback);
}
};
}
exports.createAssetLoadLoadingStateSystem = createAssetLoadLoadingStateSystem;